Home / 9,765.21-13,475.91-5,288.85

Finding the Fourth Proportional to 9,765.21, 13,475.91 and 5,288.85

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Solution

The fourth proportional to 9,765.21, 13,475.91 and 5,288.85 is: 7,298.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,765.21 : 13,475.91 = 5,288.85 : x
  2. Step 2: Convert to fraction form
    9,765.21/13,475.91 = 5,288.85/x
  3. Step 3: Cross multiply
    9,765.21x = 13,475.91 × 5,288.85
  4. Step 4: Simplify right side
    9,765.21x = 71,272,066.60
  5. Step 5: Solve for x
    x = 71,272,066.60/9,765.21
  6. Step 6: Final answer
    x = 7,298.57

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.